I just sent you a message. I suggest a soft brush. 3.4j strengthened the detection of games, and some modified games, such as removing and upgrading, slimming, etc., could not run.

Simple hard brush is not comprehensive enough now, and soft brush is a better solution now. Cross-regional games, skip upgrading ascending order, etc.

Of course, it can also be downgraded, but many new games can't be played after the downgrade.

Soft brush can see the tutorial. The soft brush of Japanese machine is relatively simple. Generally, HBC can be installed, and then Softchip, NeoGamma and so on can be installed.